Part Number: AM623
Tool/software:
Hi, TI expert!
I have a development environment for am6234, with our own evaluation board.
The software SDK version is PROCESSOR-SDK-LINUX-RT-AM62X-10.01.10.04.
I can read otp efuse normally under optee, as shown in the following picture：
I am writing otp efuse on optee and encountering the following error：
I am using the SDK version PROCESSOR-SDK-LINUX-RT-AM62X-08.06.00.42, which can read and write otp efuse normally under optee
Here is the configuration file corresponding to PROCESSOR-SDK-LINUX-RT-AM62X-10.01.10.04 for this SDK：
// ti-processor-sdk-linux-rt-am62xx-evm-10.01.10.04\board-support\ti-u-boot-2024.04+git\board\ti\am62x\sec-cfg.yaml
otp_config:
subhdr:
magic: 0x4081
size: 69
otp_entry:
- # 1
host_id: 128
host_perms: 2
- # 2
host_id: 128
host_perms: 2
- # 3
host_id: 128
host_perms: 2
- # 4
host_id: 128
host_perms: 2
- # 5
host_id: 128
host_perms: 2
- # 6
host_id: 128
host_perms: 2
- # 7
host_id: 128
host_perms: 2
- # 8
host_id: 128
host_perms: 2
- # 9
host_id: 128
host_perms: 2
- # 10
host_id: 128
host_perms: 2
- # 11
host_id: 128
host_perms: 2
- # 12
host_id: 128
host_perms: 2
- # 13
host_id: 128
host_perms: 2
- # 14
host_id: 128
host_perms: 2
- # 15
host_id: 128
host_perms: 2
- # 16
host_id: 128
host_perms: 2
- # 17
host_id: 128
host_perms: 2
- # 18
host_id: 128
host_perms: 2
- # 19
host_id: 128
host_perms: 2
- # 20
host_id: 128
host_perms: 2
- # 21
host_id: 128
host_perms: 2
- # 22
host_id: 128
host_perms: 2
- # 23
host_id: 128
host_perms: 2
- # 24
host_id: 128
host_perms: 2
- # 25
host_id: 128
host_perms: 2
- # 26
host_id: 128
host_perms: 2
- # 27
host_id: 128
host_perms: 2
- # 28
host_id: 128
host_perms: 2
- # 29
host_id: 128
host_perms: 2
- # 30
host_id: 128
host_perms: 2
- # 31
host_id: 128
host_perms: 2
- # 32
host_id: 128
host_perms: 2
write_host_id: 11
The configuration files corresponding to the SDK version PROCESSOR-SDK-LINUX-RT-AM62X-08.06.00.42 are as follows：
// ti-processor-sdk-linux-rt-am62xx-evm-08.06.00.42\board-support\k3-image-gen-2022.01\soc\am62x\evm\sec-cfg.c
/* OTP access configuration */
.otp_config = {
.subhdr = {
.magic = BOARDCFG_OTP_CFG_MAGIC_NUM,
.size = sizeof(struct boardcfg_extended_otp),
},
/* Host ID 0 is DMSC. This means no host has write access to OTP array */
.write_host_id = HOST_ID_A53_1,
/* This is an array with 32 entries */
.otp_entry = {
{
.host_id = HOST_ID_ALL,
.host_perms = 0x2,
},
{
.host_id = HOST_ID_ALL,
.host_perms = 0x2,
},
{
.host_id = HOST_ID_ALL,
.host_perms = 0x2,
},
{
.host_id = HOST_ID_ALL,
.host_perms = 0x2,
},
{
.host_id = HOST_ID_ALL,
.host_perms = 0x2,
},
{
.host_id = HOST_ID_ALL,
.host_perms = 0x2,
},
{
.host_id = HOST_ID_ALL,
.host_perms = 0x2,
},
{
.host_id = HOST_ID_ALL,
.host_perms = 0x2,
},
{
.host_id = HOST_ID_ALL,
.host_perms = 0x2,
},
{
.host_id = HOST_ID_ALL,
.host_perms = 0x2,
},
{
.host_id = HOST_ID_ALL,
.host_perms = 0x2,
},
{
.host_id = HOST_ID_ALL,
.host_perms = 0x2,
},
{
.host_id = HOST_ID_ALL,
.host_perms = 0x2,
},
{
.host_id = HOST_ID_ALL,
.host_perms = 0x2,
},
{
.host_id = HOST_ID_ALL,
.host_perms = 0x2,
},
{
.host_id = HOST_ID_ALL,
.host_perms = 0x2,
},
{
.host_id = HOST_ID_ALL,
.host_perms = 0x2,
},
{
.host_id = HOST_ID_ALL,
.host_perms = 0x2,
},
{
.host_id = HOST_ID_ALL,
.host_perms = 0x2,
},
{
.host_id = HOST_ID_ALL,
.host_perms = 0x2,
},
{
.host_id = HOST_ID_ALL,
.host_perms = 0x2,
},
{
.host_id = HOST_ID_ALL,
.host_perms = 0x2,
},
{
.host_id = HOST_ID_ALL,
.host_perms = 0x2,
},
{
.host_id = HOST_ID_ALL,
.host_perms = 0x2,
},
{
.host_id = HOST_ID_ALL,
.host_perms = 0x2,
},
{
.host_id = HOST_ID_ALL,
.host_perms = 0x2,
},
{
.host_id = HOST_ID_ALL,
.host_perms = 0x2,
},
{
.host_id = HOST_ID_ALL,
.host_perms = 0x2,
},
{
.host_id = HOST_ID_ALL,
.host_perms = 0x2,
},
{
.host_id = HOST_ID_ALL,
.host_perms = 0x2,
},
{
.host_id = HOST_ID_ALL,
.host_perms = 0x2,
},
{
.host_id = HOST_ID_ALL,
.host_perms = 0x2,
},
},
},
The corresponding debugging source code is as follows：
// ti-processor-sdk-linux-rt-am62xx-evm-10.01.10.04\board-support\optee-os-4.4.0+git\core\arch\arm\plat-k3\drivers\ti_sci.c
/**
* ti_sci_get_response() - Receive response from mailbox channel
*
* @xfer: Transfer to initiate and wait for response
*
* Return: 0 if all goes well, else appropriate error message
*/
static inline int ti_sci_get_response(struct ti_sci_xfer *xfer)
{
struct k3_sec_proxy_msg *msg = &xfer->rx_message;
struct ti_sci_msg_hdr *hdr = NULL;
unsigned int retry = 5;
int ret = 0;
for (; retry > 0; retry--) {
/* Receive the response */
ret = k3_sec_proxy_recv(msg);
if (ret) {
EMSG("Message receive failed (%d)", ret);
return ret;
}
/* msg is updated by Secure Proxy driver */
hdr = (struct ti_sci_msg_hdr *)msg->buf;
/* Sanity check for message response */
if (hdr->seq == message_sequence)
break;
IMSG("Message with sequence ID %u is not expected", hdr->seq);
}
if (!retry) {
EMSG("Timed out waiting for message");
return TEE_ERROR_BUSY;
}
DMSG("Message Header Details:");
DMSG(" Type: 0x%x", hdr->type);
DMSG(" Host: %d", hdr->host);
DMSG(" Sequence: %u", hdr->seq);
DMSG(" Flags: 0x%x", hdr->flags);
DMSG(" Expected Sequence: %u", message_sequence);
if (!(hdr->flags & TI_SCI_FLAG_RESP_GENERIC_ACK)) {
DMSG("Message not acknowledged");
return TEE_ERROR_ACCESS_DENIED;
}
return 0;
}
May I ask how to solve this problem?
Regards,
Li
